Incident Details
A Piper airplane equipped with a tailwheel and a tandem cockpit configuration was being operated from the rear seat by the pilot. During taxi to the runway, the pilot reported that forward visibility was diminished by the airplane's nose, necessitating the use of "S" turns to clear the area ahead. A Cessna airplane was also taxiing ahead of the Piper. Both aircraft momentarily held on the taxiway to monitor and give way to arriving and departing traffic. The Cessna then moved forward, and the Piper followed. While entering an S-turn, the Piper pilot lost sight of the Cessna. To avoid a collision, the pilot abruptly applied the right brake, causing the Piper's left wing to impact the Cessna's rudder.
Damage
The Cessna sustained substantial damage to its rudder, while the Piper sustained minor damage to its left wing. Both pilots shut down their airplanes, assessed the damage, and exchanged information.
Pilot Reports
The Piper pilot reported no mechanical failures or anomalies prior to or during the flight that would have prevented normal operation. The Cessna pilot reported that during taxi, the Piper struck the Cessna from behind. The Cessna pilot also stated there were no mechanical failures or anomalies.